[S217] Robert Abell Descendents, Compiler sites: "Abell Family In America, Robert Abell of Rehoboth, Mass.", by Horace A. and Lewis P. Abell. April 20, 1932., 217.
[S217] Robert Abell Descendents, Compiler sites:"Florence Abel Stock and her Ancestry", by H. Thompson Stock, 1986.,, 217.